First of all your analogy of comparing reservation in educational institutions/govt companies against our cricket team is just plain stupid.
SC/STs continue to remain poor despite Govt's relief measures and they cannot be expected to compete on fair terms with the more privelaged upper castes. How many SC/STs can really afford the expensive private coaching to get into IITs/IIMs?. A fair game is one where there is equal chance for everyone to compete.Majority of SCs/STs cannot even afford a regular meal on a daily basis. For SC/STs a dream of joining the cricket team would be too far fetched.The upper castes have been ruling the country since god knows when. Why hasn't the country developed. Thnik about how the southern states which implemented reservations have made significant progress . And those states which refused to implement lagged behind. That is a perfect example.